Others are also careless; they don't think that the seed phrase is like a car key without which the car won't start. There must be a duplicate, so the same goes for the seed phrase; there must always be a backup.
In general, for long-time Internet users, losing passwords, and especially information that has financial content, would be extremely stupid in our time. Those who previously used digital wallets, before Bitcoin, had to save passwords or other keys. For those who constantly communicate on forums, their accounts are probably precious, so surely everyone knows the value of saving their information outside the devices they use. Probably everyone has heard the words “virus”, “stealer” and even “hacker”.
From the very first steps, beginners are encouraged to save their seed phrase when creating a wallet, and those who do not listen to recommendations but are too confident will lose and repeat the lessons that the Internet teaches them.